<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>后盾人</title>
  </head>
  <body></body>
  <script>
    // let hd = "hdddhdhdhdhdh";
    // console.log(hd.match(/(hd)+/g));
    // let tel = "0478-99999999";
    // console.log(tel.match(/^0\d{2,3}-\d{7,8}$/));
  </script>
</html>
